319316920 has 32 divisors (see below), whose sum is σ = 773730720. Its totient is φ = 117901440.

The previous prime is 319316903. The next prime is 319316923. The reversal of 319316920 is 29613913.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319316923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306516 + ... + 307555.

It is an arithmetic number, because the mean of its divisors is an integer number (24179085).

Almost surely, 2^319316920 is an apocalyptic number.

It is an amenable number.

319316920 is an abundant number, since it is smaller than the sum of its proper divisors (454413800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

319316920 is a wasteful number, since it uses less digits than its factorization.

319316920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614095 (or 614091 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 319316920 is about 17869.4409537624. The cubic root of 319316920 is about 683.5033443068.

The spelling of 319316920 in words is "three hundred nineteen million, three hundred sixteen thousand, nine hundred twenty".